Introduction
This manual provides comprehensive instructions for the MAUL Desktop Calculator Printing MPP 123. It covers everything from initial setup and daily operation to maintenance and troubleshooting, ensuring you can maximize the efficiency and functionality of your calculator. The MPP 123 is a top model with an extensive range of functions, featuring a 12-digit LCD display, 2-colour printing, and important commercial functions.
Image: The MAUL Desktop Calculator Printing MPP 123, showcasing its compact design and the paper roll for printed calculations.
Setup
Unpacking
- Carefully remove the calculator and all accessories from the packaging.
- Verify that all components are present: 1 x desktop calculator, 1 x paper roll.
- Retain the packaging for future storage or transport.
Power Supply
The MAUL MPP 123 calculator can be operated using either mains power or battery power.
- Mains Operation: Connect the calculator to a suitable power outlet using the provided power adapter (if included, otherwise it implies direct mains connection). This is the energy-saving mode for continuous use.
- Battery Operation: The calculator includes a CR2032 battery for portable use or as a backup. Ensure the battery is correctly installed in its compartment.
Paper Roll Installation
The calculator uses a 58 mm wide paper roll for printing. Follow these steps to install a new roll:
- Open the paper roll cover, usually located at the top rear of the calculator.
- Insert the new paper roll, ensuring the paper feeds from the bottom and up towards the printing mechanism.
- Pull a small length of paper out and close the cover, making sure the paper is aligned with the feed slot.
- Use the FEED button to advance the paper and confirm correct installation.
Image: The MAUL Desktop Calculator in an office environment, demonstrating its integration into a workspace.
Operating Instructions
The MAUL MPP 123 features a PC-like keyboard for intuitive operation and a 12-digit LCD display for clear readability.
Basic Operations
- Addition (+): Enter the first number, press '+', enter the second number, press '='.
- Subtraction (-): Enter the first number, press '-', enter the second number, press '='.
- Multiplication (*): Enter the first number, press '*', enter the second number, press '='.
- Division (/): Enter the first number, press '/', enter the second number, press '='.
- Clear Entry (CE/C): Clears the last entered number or the entire calculation.
- Grand Total (GT): Calculates the sum of all results from previous calculations.
Commercial Functions
- Profit Margin Function (MU %): Used for calculating selling prices based on cost and desired profit margin.
- Automatic Tax Calculation (TAX+, TAX-): Allows calculation of prices with or without tax. The tax rate can be programmed.
- Currency Conversion: Convert currencies with a programmable exchange rate. Refer to the specific buttons for setting and using this function.
Memory Functions
- The calculator features a 3-button memory system with 2 memory plans (M+, M-, MRC).
- M+: Adds the displayed value to the memory.
- M-: Subtracts the displayed value from the memory.
- MRC: Recalls the memory content. Pressing twice clears the memory.
Printing Functions
- The calculator supports 2-colour printing at a speed of 2.4 lines per second.
- PRINT ON/OFF: Toggles the printing function. When ON, all calculations are printed on the paper roll.
- FEED: Advances the paper roll.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the calculator's exterior. For stubborn marks, a slightly damp cloth with mild detergent can be used, ensuring no liquid enters the device.
- Battery Replacement: When the display becomes dim or the calculator behaves erratically on battery power, it's time to replace the CR2032 battery. Refer to the battery compartment for instructions on safe replacement.
- Paper Roll: Always use 58mm thermal paper rolls designed for printing calculators. Replace the roll promptly when it runs out to ensure continuous printing functionality.
- Storage: Store the calculator in a cool, dry place away from direct sunlight and extreme temperatures when not in use for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Calculator does not turn on. | No power supply; dead battery. | Ensure mains adapter is connected or replace the CR2032 battery. |
| Display is dim or blank. | Low battery power. | Replace the CR2032 battery. |
| Printer is not printing. | Paper roll empty or incorrectly installed; print function off. | Check and replace paper roll; ensure PRINT function is ON. |
| Incorrect calculations. | Incorrect input; memory not cleared. | Double-check entered numbers; clear memory (MRC twice) and try again. |
Specifications
| Feature | Detail |
|---|---|
| Brand | MAUL |
| Model Name | Desktop calculator printing MPP 123 |
| Model Number | 7272584 |
| Colour | Gray |
| Material Type | Plastic |
| Display | 1-line, 12-digit LCD display |
| Printing Speed | 2.4 lines/sec |
| Printing Colour | 2-colour printing |
| Paper Roll Width | 58 mm |
| Power Source | Mains and Battery Operated |
| Battery Type | 1 x CR2032 (included) |
| Product Dimensions | 26.6L x 20.2W x 7.7H centimetres (for current model) |
| Manufacturer | Jakob Maul GmbH |
Warranty and Support
MAUL products are known for their precision and reliability, backed by the experience of a German family business with over 110 years of history. We combine sustainability and new technologies with functionality and craftsmanship to ensure high-quality products.
For any technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact your local MAUL distributor or the point of purchase. Please have your model number (MPP 123) and purchase details ready when contacting support.
